Backport a few 1.10 fixes that should are relevant for 1.9.4

Fixes:
SPIGOT-2380
SPIGOT-1124
SPIGOT-2322
SPIGOT-2348

Spigot-Server-Patches/0166-SPIGOT-2380-Hitting-in-the-air-will-always-load-the-.patch

@@ -0,0 +1,47 @@
+From 36f323685571e1dfa2056aea47c91f96bd1dae75 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Sat, 11 Jun 2016 22:33:51 -0500
+Subject: [PATCH] SPIGOT-2380: Hitting in the air will always load the chunk at
+ 0,0
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index f2d9461..fc5ba08 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -191,7 +191,7 @@ public class CraftEventFactory {
+         if (action != Action.LEFT_CLICK_AIR && action != Action.RIGHT_CLICK_AIR) {
+             throw new IllegalArgumentException(String.format("%s performing %s with %s", who, action, itemstack)); // Spigot
+         }
+-        return callPlayerInteractEvent(who, action, new BlockPosition(0, 256, 0), EnumDirection.SOUTH, itemstack, hand);
++        return callPlayerInteractEvent(who, action, null, EnumDirection.SOUTH, itemstack, hand);
+     }
+ 
+     public static PlayerInteractEvent callPlayerInteractEvent(EntityHuman who, Action action, BlockPosition position, EnumDirection direction, ItemStack itemstack, EnumHand hand) {
+@@ -205,11 +205,10 @@ public class CraftEventFactory {
+         CraftWorld craftWorld = (CraftWorld) player.getWorld();
+         CraftServer craftServer = (CraftServer) player.getServer();
+ 
+-        Block blockClicked = craftWorld.getBlockAt(position.getX(), position.getY(), position.getZ());
+-        BlockFace blockFace = CraftBlock.notchToBlockFace(direction);
+-
+-        if (position.getY() > 255) {
+-            blockClicked = null;
++        Block blockClicked = null;
++        if (position != null) {
++            blockClicked = craftWorld.getBlockAt(position.getX(), position.getY(), position.getZ());
++        } else {
+             switch (action) {
+             case LEFT_CLICK_BLOCK:
+                 action = Action.LEFT_CLICK_AIR;
+@@ -219,6 +218,7 @@ public class CraftEventFactory {
+                 break;
+             }
+         }
++        BlockFace blockFace = CraftBlock.notchToBlockFace(direction);
+ 
+         if (itemInHand.getType() == Material.AIR || itemInHand.getAmount() == 0) {
+             itemInHand = null;
+-- 
+2.8.3
+

Spigot-Server-Patches/0167-SPIGOT-1124-Changed-To-Location-on-Teleport-event-ig.patch

@@ -0,0 +1,22 @@
+From 0cb35fe76a8bd74a6f5c029cf8d4632bd5f1cd82 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Sat, 11 Jun 2016 22:36:12 -0500
+Subject: [PATCH] SPIGOT-1124: Changed To-Location on Teleport event ignored
+
+
+diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
+index cf27086..16db36e 100644
+--- a/src/main/java/net/minecraft/server/PlayerConnection.java
++++ b/src/main/java/net/minecraft/server/PlayerConnection.java
+@@ -682,7 +682,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
+         PlayerTeleportEvent event = new PlayerTeleportEvent(player, from.clone(), to.clone(), PlayerTeleportEvent.TeleportCause.UNKNOWN);
+         this.server.getPluginManager().callEvent(event);
+ 
+-        if (event.isCancelled() || to.equals(event.getTo())) {
++        if (event.isCancelled() || !to.equals(event.getTo())) {
+             set.clear(); // Can't relative teleport
+             to = event.isCancelled() ? event.getFrom() : event.getTo();
+             d0 = to.getX();
+-- 
+2.8.3
+

Spigot-Server-Patches/0168-SPIGOT-2322-Chunks-generating-with-missing-corrupted.patch

@@ -0,0 +1,49 @@
+From 90a08c724d28636bbbd47a7364f66bc26111dd29 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Sat, 11 Jun 2016 22:41:13 -0500
+Subject: [PATCH] SPIGOT-2322: Chunks generating with missing / corrupted data.
+
+
+diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
+index 4a2cad6..33b3db7 100644
+--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
++++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
+@@ -105,14 +105,23 @@ public class ChunkProviderServer implements IChunkProvider {
+             if (loader != null && loader.chunkExists(world, i, j)) {
+                 chunk = ChunkIOExecutor.syncChunkLoad(world, loader, this, i, j);
+             }
+-            /* chunk = this.loadChunk(i, j);
++        }
++
++        return chunk;
++    }
++
++    @Nullable
++    public Chunk originalGetOrLoadChunkAt(int i, int j) {
++        // CraftBukkit end
++        Chunk chunk = this.getLoadedChunkAt(i, j);
++
++        if (chunk == null) {
++            chunk = this.loadChunk(i, j);
+             if (chunk != null) {
+                 this.chunks.put(ChunkCoordIntPair.a(i, j), chunk);
+                 chunk.addEntities();
+                 chunk.loadNearby(this, this.chunkGenerator);
+             }
+-            */
+-            // CraftBukkit end
+         }
+ 
+         return chunk;
+@@ -161,7 +170,7 @@ public class ChunkProviderServer implements IChunkProvider {
+     }
+ 
+     public Chunk originalGetChunkAt(int i, int j) {
+-        Chunk chunk = this.getLoadedChunkAt(i, j);
++        Chunk chunk = this.originalGetOrLoadChunkAt(i, j);
+         boolean newChunk = false;
+         // CraftBukkit end
+ 
+-- 
+2.8.3
+

Spigot-Server-Patches/0169-SPIGOT-2348-EntityTeleportEvent-cancellation.patch

@@ -0,0 +1,36 @@
+From 82c7ab1d2357cc85903cfd762d51fcede6a5fcd8 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Sat, 11 Jun 2016 22:47:52 -0500
+Subject: [PATCH] SPIGOT-2348: EntityTeleportEvent cancellation
+
+
+diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
+index 129bca8..c4c0308 100644
+--- a/src/main/java/net/minecraft/server/EntityLiving.java
++++ b/src/main/java/net/minecraft/server/EntityLiving.java
+@@ -2348,16 +2348,14 @@ public abstract class EntityLiving extends Entity {
+                 // this.enderTeleportTo(this.locX, this.locY, this.locZ);
+                 EntityTeleportEvent teleport = new EntityTeleportEvent(this.getBukkitEntity(), new Location(this.world.getWorld(), d3, d4, d5), new Location(this.world.getWorld(), this.locX, this.locY, this.locZ));
+                 this.world.getServer().getPluginManager().callEvent(teleport);
+-                if (teleport.isCancelled()) {
+-                    return false;
++                if (!teleport.isCancelled()) {
++                    Location to = teleport.getTo();
++                    this.enderTeleportTo(to.getX(), to.getY(), to.getZ());
++                    if (world.getCubes(this, this.getBoundingBox()).isEmpty() && !world.containsLiquid(this.getBoundingBox())) {
++                        flag = true;
++                    }
+                 }
+-
+-                Location to = teleport.getTo();
+-                this.enderTeleportTo(to.getX(), to.getY(), to.getZ());
+                 // CraftBukkit end
+-                if (world.getCubes(this, this.getBoundingBox()).isEmpty() && !world.containsLiquid(this.getBoundingBox())) {
+-                    flag = true;
+-                }
+             }
+         }
+ 
+-- 
+2.8.3
+